Hard Shell Veggie Tacos
These vegan hard shell veggie tacos are my go-to for a quick, healthy Mexican-style dinner. You sautee a frozen Mexican vegetable mix with taco seasoning, then pile it into crisp corn taco shells with salad greens, garlic aioli, sriracha and a squeeze of lime. Start to finish, you are eating in about 20 minutes.
I prepared these for a Mexican-themed dinner at home, and I really love organizing this kind of themed evening several times a week. Because I wanted to properly mimic a restaurant atmosphere, I even played background sound to set the mood. But even on a themed night, some things never change: I hate spending endless hours in the kitchen. So I used a mix of Mexican veggies straight from the supermarket and let them do the heavy lifting.
I will be honest with you: the photos here are not my usual polished blog shots. I only had a couple of pictures taken with my phone, no props, no proper light and no fancy plating. We were extra hungry and just wanted to enjoy the evening together. But I wanted to share this recipe anyway, because it exceeded all my expectations. If I think about it, these have become my new favorite tacos.
Key ingredients
Frozen Mexican vegetable mix is the shortcut that makes this dinner so fast. I used half a bag of the Lidl Mexican mixed veggies, but any brand works. Mine has baby corn, sweet corn, green beans, kidney beans, onion, red pepper and spices, so it is already seasoned and gives you protein, sweetness and crunch in one bag. Buying a pre-mixed bag means no chopping and no waste, and frozen veggies are picked and frozen at peak ripeness, so they hold their flavor well.
Hard corn taco shells give you that satisfying crunch. Six shells is the right amount for this batch of filling. Look for shells made from corn rather than wheat if you want to keep these naturally gluten-free, and warm them for a couple of minutes in the oven before filling so they crisp up and do not taste stale.
Taco seasoning blend is what turns plain veggies into something craveable. I added a few pinches of chili powder, garlic and onion powder, crushed red pepper flakes, dried oregano, paprika, cumin, salt and pepper. Building your own blend from what is in your spice rack lets you control the heat and the salt instead of relying on a packet.
Garlic aioli and sriracha are what tie everything together. The aioli brings creamy richness against the crisp shell, and the sriracha adds heat and tang. To keep these fully vegan, use a vegan garlic sauce, or simply mix vegan mayo with a couple of crushed garlic cloves. This step is optional, but it is the one I never skip.
Lime and mixed salad greens finish the tacos. A squeeze of fresh lime juice over each taco brightens the whole thing, and the greens add freshness and crunch under the warm filling. I used a pre-washed salad mix, which keeps assembly fast.
My tips
- Sautee the frozen veggies with just a little water, add your spices, then cover with a lid and let them steam for about 15 minutes. The lid traps the steam so the veggies cook through evenly without drying out or sticking.
- Do not drown the pan. A frozen mix releases its own moisture as it thaws, so a small splash of water is all you need. Too much liquid and you end up boiling the veggies into mush instead of steaming them tender.
- You know the filling is ready when the veggies are tender and most of the liquid has cooked off. If the pan still looks watery, take the lid off for the last couple of minutes to let it reduce, so your shells do not go soggy.
- Add the greens to the shell first, then the warm veggie mix on top. The layer of greens acts as a buffer that keeps the hot filling from softening the shell too quickly.
- Drizzle the aioli, sriracha and lime right before serving, not in advance. These tacos are best assembled and eaten fresh, while the shell is still crisp.
What to serve with them
I take my themed dinners seriously, so to round out a full Mexican meal I also made some vegan nachos. Some guacamole would be an excellent addition too, if you have the time for it. If you want to keep the taco night going, I have a whole collection of veggie taco recipes, and you can find plenty more inspiration in my complete Mexican cuisine guide. You may remember I have made other taco recipes in the past, like my cauliflower tacos and these smoky vegan tacos with salsa verde. I love them all, but these hard shell ones are so easy and flavorful that it is hard not to become obsessed.
Storage and make-ahead
These tacos are best assembled and eaten right away, while the shells are crisp. If you want to prep ahead, cook the veggie filling in advance and store it in an airtight container in the fridge for up to 3 days, then reheat it in a pan when you are ready to eat. Keep the shells, greens and sauces separate until serving so nothing goes soggy. I would not recommend assembling the tacos in advance, since the warm filling will soften the hard shells within minutes.
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Hard Shell Veggie Tacos
Ingredients
- 6 hard corn taco shells
- 300 g frozen Mexican vegetable mix any brand you like (I used half a bag of Lidl Mexican mixed veggies, but you can use any brand. Mine contains baby corn, sweet corn, green beans, kidney beans, onion, red pepper and spices)
- 2-3 Tbsp taco seasoning blend (I added a few pinches of chili powder, garlic and onion powder, crushed red pepper flakes, dried oregano, paprika, cumin, salt and pepper)
- 1 lime cut into 4 wedges
- mixed salad greens (I used a pre-washed salad mix – Misticanza is my favorite)
- garlic aioli or any other garlic sauce you like. You can also mix some mayo with crushed garlic cloves. optional
- some light drizzles of sriracha
Instructions
- Sautee the frozen veggies in a pan, with a little bit of water. Add the spices. Cover with a lid and let them steam for about 15 minutes.
- Place the hard corn taco shells in the serving forms and start filling them with some mixed salad greens and 2-3 Tbsps of the veggies mix.
- Drizzle some garlic aioli and sriracha on top and serve with freshly squeezed lime juice on each taco.
Frequently Asked Questions
Yes, this version is fully vegan. The filling is a frozen Mexican vegetable mix sauteed with taco seasoning, and the only animal-derived ingredient to watch is the optional garlic aioli. Just swap in a vegan garlic sauce, or mix vegan mayo with crushed garlic, and the whole recipe stays plant-based.
They can be. Hard corn taco shells are naturally gluten-free, but always check the package, since some brands blend in wheat. Also confirm that your taco seasoning and any sauces, like the sriracha or aioli, are certified gluten-free if you are cooking for someone with celiac disease.
Absolutely. The frozen Mexican mix is a time-saver, but you can sautee fresh diced peppers, onion, sweet corn, green beans and kidney beans instead. Fresh veggies may need a slightly longer cook time and a touch more oil or water, so cook them until tender before filling the shells.
Cook off most of the liquid from the veggie filling before assembling, and add a layer of salad greens to the shell first as a buffer. Most importantly, assemble and eat the tacos right away rather than letting filled shells sit, and warm the shells in the oven for a couple of minutes beforehand so they stay crisp.
About 20 minutes start to finish. The frozen veggies steam under a lid for roughly 15 minutes with the spices, and assembling the tacos with greens, sauces and lime takes only a few minutes more. It is one of the quickest weeknight dinners I make.
Yes. Cook the seasoned veggie filling in advance and store it in an airtight container in the fridge for up to 3 days, then reheat it in a pan. Keep the shells, greens and sauces separate and assemble just before serving so the shells stay crunchy.
I love the initiative and the recipe, so good! ☺️